package demo3;

public class KeyBoard implements IUSB{
    @Override
    public void openDevices() {
        System.out.println("打开键盘......");

    }
    public void input(){
        System.out.println("进行键盘的输入......");
    }

    @Override
    public void closeDevices() {
        System.out.println("关闭键盘.....");

    }
}
